The rhomboid muscles (), often simply called the rhomboids, are
rhombus-shaped muscles associated with the
scapula. There are two rhomboid muscles on each side of the upper back:
*
Rhomboid major muscle
*
Rhomboid minor muscle
The large rhombus-shaped muscle, located under the
trapezius muscle in the upper part of the
thoracic region of the back, and the small muscle, in the same way, participate in the movement of the scapula.
Anatomy
The rhomboid major muscle originates from the spinous processes of vertebrae T2–T5, while it inserts to the medial border of the scapula. The rhomboid minor muscle originates from the
nuchal ligament and spinous processes of vertebrae C7–T1. Both muscles are
innervated by the
dorsal scapular nerve, a branch of the
brachial plexus. Their functions are the following:
* Drawing scapula superomedially
* Supporting scapula
* Rotating glenoid cavity inferiorly
Additional images
File:Rhomboid muscles animation small.gif, Rhomboid muscles.
File:Muscles rhomboïdes.jpg, Rhomboid muscles.
File:Gray203.png, Left scapula. Posterior surface.
File:BodybuildingWoman.jpg, Full back muscle flex
...
References
{{DEFAULTSORT:Rhomboid Muscles
Muscles of the torso